Do you mean THIS Leo Lyons?
Who plays bass while Alvin Lee
who played guitar in the group, Ten Years After, the photos of which I shot in 1969 or 70. (I can't remember...matter of fact, there was so much weed and so many bota bags of wine, some of which had come from hookas and was really potent stuff...going around that I lost my van for 3 days.
)
But on the other hand, it's prolly not the same dude.
RtR